code: def testEncodingErrors(self, value, spec, message):
      with self.assertRaisesRegex(ValueError, message):
          composite_tensor_ops.composite_tensor_to_variants(
              value(), spec
          )
  
imports: from absl.testing import parameterized
  from tensorflow.python.eager import backprop
  from tensorflow.python.eager import context
  from tensorflow.python.framework import constant_op
  from tensorflow.python.framework import dtypes
  from tensorflow.python.framework import errors
  from tensorflow.python.framework import sparse_tensor
  from tensorflow.python.framework import test_util
  from tensorflow.python.ops import composite_tensor_ops
  from tensorflow.python.ops import gen_composite_tensor_ops
  from tensorflow.python.ops import gen_list_ops
  from tensorflow.python.ops import gradients_impl
  from tensorflow.python.ops import math_ops
  from tensorflow.python.ops import parsing_ops
  from tensorflow.python.ops import sparse_ops
  from tensorflow.python.ops.ragged import ragged_factory_ops
  from tensorflow.python.ops.ragged import ragged_tensor
  from tensorflow.python.platform import googletest
  from tensorflow.python.util import nest
label_desc: Use image node_id 3 for calling the ExtensionTypeTest obj's underlying member method code with example usage: obj.testEncodingErrors(value, spec, message) without return types